Quantum phenomena at the nanoscale

"Schrödinger cat" is a quantum paradox suggested by Schrödinger in 1935. Its purpose is to illustrate a highly counterintuitive nature of the quantum theory.

The quantum theory, or quantum mechanics, was created by Werner Heisenberg who received Nobel Prize in 1932 for this achievement. This theory describes the behavior of objects at the atomic scale, with unsurpassed precision. The question of applicability of quantum mechanics to macroscopic objects remains a subject of debate and some controversy, as is illustrated by the "Schrödinger cat" thought experiment. Get full info for "Schrödinger Cat: At once dead and alive!"

Negatively charged electron and positively charged holes, existing in a semiconductor, attract each other and can form bound particles or “electron-hole” atoms, know as excitons. Recent experiments by "Leonid Butov (UCSD)" and his collaborators suggest that these particles can condense into a single quantum state and form a superfluid. This is similar to superfluidity of He atoms which can also form a condensate. Get full info for "Excitons condense and form macroscopic patterns"

The figure shows two example of a recent low-temperature transport experiments with multiwall nanotubes. This amazing "face"-type images represent gray-scale maps of the nanotube electrical conductance, measured with respect to two variables: magnetic field (horizontal axis), applied parallel to the tube, and the bias voltage (vertical axis). Get full info for "Multiwall carbon nanotube SET transistor"